JoinBinaryFiles – Joining a variable number of binary files into a single file

' Join a variable number of binary files into a single file'' Params:'  - resultFile: the complete path of the result file you want to create'  - sourceFiles: the sequence of files whose content will be joined together'' Example:'   JoinBinaryFiles("D:Test.bin", "D:Source1.bin", "D:Source2.bin",'  "D:Source3.bin")Sub JoinBinaryFiles(ByVal resultFile As String, ByVal ParamArray sourceFiles() _    As String)    ' if the result file already exists, delete it    If System.IO.File.Exists(resultFile) Then        System.IO.File.Delete(resultFile)    End If    ' create the destination file and open it in write mode    Dim fsw As New System.IO.FileStream(resultFile, _        System.IO.FileMode.CreateNew)    Dim writer As New System.IO.BinaryWriter(fsw)    ' open each input file in read mode, and copy its content to the     ' destination file    Dim fpath As String    For Each fpath In sourceFiles        Dim fsr As System.IO.FileStream        Dim reader As System.IO.BinaryReader        Try            ' create the reader for this file            fsr = New System.IO.FileStream(fpath, System.IO.FileMode.Open, _                System.IO.FileAccess.Read)            reader = New System.IO.BinaryReader(fsr)            ' read the binary content and write it to the destination file            writer.Write(reader.ReadBytes(fsr.Length))        Catch e As Exception            ' if there is an exception, close the writer and re-throw the             ' exception            ' so that the routines terminates. The reader is closed in the             ' Finally block below            writer.Close()            fsw.Close()            Throw e        Finally            If Not reader Is Nothing Then                reader.Close()                fsr.Close()            End If        End Try    Next    ' close the writer    writer.Close()    fsw.Close()End Sub